From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Fri, 21 Aug 2020 22:23:29 +0000 (+1000)
Subject: net: Get rid of consume_skb when tracing is off
X-Git-Tag: v5.15~2972^2~55
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=be769db2f95861cc8c7c8fedcc71a8c39b803b10;p=mirror_ubuntu-kernels.git

net: Get rid of consume_skb when tracing is off

The function consume_skb is only meaningful when tracing is enabled.
This patch makes it conditional on CONFIG_TRACEPOINTS.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 46881d902124..e8bca74857a3 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1056,7 +1056,16 @@ void kfree_skb(struct sk_buff *skb);
 void kfree_skb_list(struct sk_buff *segs);
 void skb_dump(const char *level, const struct sk_buff *skb, bool full_pkt);
 void skb_tx_error(struct sk_buff *skb);
+
+#ifdef CONFIG_TRACEPOINTS
 void consume_skb(struct sk_buff *skb);
+#else
+static inline void consume_skb(struct sk_buff *skb)
+{
+	return kfree_skb(skb);
+}
+#endif
+
 void __consume_stateless_skb(struct sk_buff *skb);
 void  __kfree_skb(struct sk_buff *skb);
 extern struct kmem_cache *skbuff_head_cache;
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index e18184ffa9c3..6faf73d6a0f7 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -820,6 +820,7 @@ void skb_tx_error(struct sk_buff *skb)
 }
 EXPORT_SYMBOL(skb_tx_error);
 
+#ifdef CONFIG_TRACEPOINTS
 /**
  *	consume_skb - free an skbuff
  *	@skb: buffer to free
@@ -837,6 +838,7 @@ void consume_skb(struct sk_buff *skb)
 	__kfree_skb(skb);
 }
 EXPORT_SYMBOL(consume_skb);
+#endif
 
 /**
  *	consume_stateless_skb - free an skbuff, assuming it is stateless